Blue Raven Development Thread: Flight Summary Data

[Adrian A]

When you approach a Blue Raven after it lands, as soon as it gets into Bluetooth range it will start downloading flight data to your phone. To get all the data will take several minutes to download, but before all that, the Blue Raven will provide flight summary data first. It's a bunch of useful or interesting data in distilled form that you'll have available on its own phone page right away. Here is the list so far, in approximate order

• Rocket name
• Launch date
• Launch time
• Max altitude (baro)
• Max velocity
• Max acceleration during motor burn
• Max drag deceleration
• Apogee deployment charge max acceleration
• Main deployment charge max acceleration
• Third channel deployment charge max acceleration
• Fourth channel deployment charge max acceleration
• Drogue (or drogueless) descent rate at main deployment
• Main chute average descent rate
• Roll rotations during ascent
• tilt angle at burnout
• Tilt losses (% of delta-V non-vertical)
• Pad altitude
• Landing time

Is there any other summary data that could be interesting that I'm missing?

 

[Adrian A]

I just thought of another one:

• Horizontal Velocity at Apogee

 

[dvdsnyd]

Adrian,
Do you have anything on the road map for 3d visualization of the recorded flight?
Thanks,
Dave

 

[AllDigital]

Time to apogee (T+ sec)
Motor burnout time (milliseconds)
Main deploy time (t+ sec)

Optional:
Battery v/%
Temperature

I hope you’ve got a big accelerometer to catch those pyro max acceleration values.

 

[Adrian A]

Adrian,
Do you have anything on the road map for 3d visualization of the recorded flight?
Thanks,
Dave

Not yet, but it's an interesting idea.

Time to apogee (T+ sec)
Motor burnout time (milliseconds)
Main deploy time (t+ sec)

Optional:
Battery v/%
Temperature

I hope you’ve got a big accelerometer to catch those pyro max acceleration values.

Good ideas for the summary data. The high-G accelerometer has a +/- 400G range and samples at 500 Hz, so I think it will be adequate for those peak G accelerations.

 

[Adrian A]

My app developer has made some major progress on the UI in the last week, and I had something of a breakthrough yesterday on my end of the Bluetooth. I think the first version with a partial phone interface may be ready for beta testing in the next week or two.

 

[Adrian A]

Small update: The phone app is setting the blue raven time correctly. Live data is getting displayed, but there is a data alignment issue that should be fixed soon. iOS and Android apps are getting worked in parallel. Other phone interface features still in work, and necessary before the first release:

• Set the deployment channels from the phone
• Command a simulated flight
• See live data during the simulated flight
• Download the flight summary data